Citazione Stile APA (7a Edizione)
Langhammer, R. J. (1982). <The> Importance of "Natural" barriers to trade among developing countries: Some evidence from the transport cost content in Brazilian imports. Institut für Weltwirtschaft.
Citazione stile Chigago Style (17a edizione)
Langhammer, Rolf J. <The> Importance of "Natural" Barriers to Trade Among Developing Countries: Some Evidence from the Transport Cost Content in Brazilian Imports. Kiel: Institut für Weltwirtschaft, 1982.
Citatione MLA (9a ed.)
Langhammer, Rolf J. <The> Importance of "Natural" Barriers to Trade Among Developing Countries: Some Evidence from the Transport Cost Content in Brazilian Imports. Institut für Weltwirtschaft, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.